Marshall Bagot is a politician from Virgon, selected to represent that planet on the Quorum of Twelve. He appears to be one of the most vocal and influential members of the Quorum during his post-Fall tenure.

Following assistance given by Tom Zarek's men on Astral Queen, whereby they repair the air filtration system aboard Bagot's ship, Bagot nominates Zarek for the post of Vice President.

He is an officious-sounding individual, and his support for Zarek does not surprise Wallace Gray, Roslin's policy-maker and original vice-presidential candidate (TRS: "Colonial Day").